Paper Dehumidifying Heaters And Humidity Sensor - Minolta CF910 Service Manual

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1154SBM1306A

13-6. Paper Dehumidifying Heaters and Humidity Sensor

• Paper Dehumidifying Heaters 1 to 4 H4 to H7 are provided to prevent damp paper from

adversely affecting the copy image.

• Each of these heaters is a 30W heater.

From the time when the Start Key is pressed to the time

when PC Drum Drive Motor M18 is deenergized.

• Humidity Sensor UN23 installed in the rear of the copier detects humidity and tempera-

ture inside the copier.

• Based on the humidity and temperature readings, the copier calculates the absolute

humidity for use in black toner replenishing control and image transfer, paper separator,

and charge neutralizing output control.

Paper Dehumidifying Switch S2

Humidity Sensor

Misfeed/malfunction,

Temperature Data

Humidity Data

Calculating Absolute Humidity

Master Board PWB-I

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